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3 years ago

How to figure out math problem 2 3/8 x 1/3

Mathematics

1 answer:

amid [387]3 years ago

5 0

The answer is 6/48. You would multiply 3/8 by 1/3 across and get 3/24,then you multiply 3/24 by 2 and get 6/48

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Write an equivalent expression for (2 m + 3) (m - 1)

Dmitry [639]

Answer:

$2m^2-3m-9$

Step-by-step explanation:

use FOIL

F-firsts

$2m*m=2m^2$

O-outer

$2m*-3=-6m$

I-inner

$3*m=3m$

L-lasts

$3*-3=-9$

$2m^2-6m+3m-9\\\\-6m+3m=-3m\\\\2m^2-3m-9$

(2m+3)(m-3)

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3 years ago

You are purchasing carpeting for an office building. The space to be carpeted is 30 feet by 50 feet. Company A charges $2.99 per

pishuonlain [190]

The Answer is $5 = $20(x<span>)!!!!!!!!!!!!!!!!!!!!!!!!</span>

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3 years ago

The equation x ^ 2 - 2x + y ^ 2 - 4y = 20 defines a circle in the xy-coordinate plane What is the radius of the circle?

Helga [31]

Answer:

I'll set up the problem and you can do the calculation

Step-by-step explanation:

we need to complete the squares to get the equation in the general form:

${(x - h)}^{2} + {(y - k) }^{2} = {r}^{2}$

where h = the x coordinate of the center

k = the y coordinate of the center

r = the radius

so looking at

${x}^{2} - 2x$

we can see that if use -1 as the constant we have

${(x - 1)}^{2} = {x}^{2} - 2x + 1$

doing the same for y

${y}^{2} - 4y$

we can use -2 as the constant (basically you that the s

quare of the y coefficient )

${(y - 2)}^{2} = {y}^{2} - 4y + 4$

so now we have to add or subtract the constant on the RHS to see what the square of the radius is according to the general form of the equation at the top

20 +1+4=25

Take the square root and you have the radius

4 0

3 years ago

Two math classes took the same quiz. The scores of 10 randomly selected students from each class are listed below. • Sample of C

padilas [110]

Answer:

Step-by-step explanation:

First you have to find the medians which is when you put the numbers in number order and find the one in the middle.

Class A: 60,65,70,70,75,80,80,85,90,90

=77.5

Class B: 75,85,85,85,90,90,90,90,95,100

=90

That the class B is more advanced, and they probably studied.

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3 years ago

Of the 50 students in Mr. Mitchell’s classes, 60% are girls. On Friday,20 %

Maurinko [17]

Answer:

Step-by-step explanation:

60% of 50 is 30 and 20% of 30 is 6

3 0

2 years ago